# CVE-2022-31009: DoS vulnerability: Invalid Accent Colors

> An attacker can cause the Wire iOS client to crash repeatedly by sending invalid accent colors, requiring users to upgrade the application.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 23 Jun 2022
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-83m6-p7x5-925j

## What is CVE-2022-31009?

CVE-2022-31009 is a medium-severity denial of service vulnerability in wireapp wire-ios, published on 23 Jun 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

wire-ios is an iOS client for the Wire secure messaging application. Invalid accent colors of Wire communication partners may render the iOS Wire Client partially unusable by causing it to crash multiple times on launch. These invalid accent colors can be used by and sent between Wire users. The root cause was an unnecessary assert statement when converting an integer value into the corresponding enum value, causing an exception instead of a fallback to a default value. This issue is fixed in [wire-ios](https://github.com/wireapp/wire-ios/commit/caa0e27dbe51f9edfda8c7a9f017d93b8cfddefb) and in Wire for iOS 3.100. There is no workaround available, but users may use other Wire clients (such as the [web app](https://app.wire.com)) to continue using Wire, or upgrade their client.

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2022-31009?

It affects 1 product.


Products: Wire Wire.

## How do I fix CVE-2022-31009?

No fix has been published for CVE-2022-31009 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-31009 being exploited?

There is no known exploitation of CVE-2022-31009 in the wild and no public exploit code.

## Other vulnerabilities in wireapp wire-ios

- [CVE-2020-27853](https://insights.sbomify.com/CVE-2020-27853/): Other in n/a (critical 9.8)
- [CVE-2021-32665](https://insights.sbomify.com/CVE-2021-32665/): Verified groups not reliable (high 8.8)
- [CVE-2020-15258](https://insights.sbomify.com/CVE-2020-15258/): Insecure use of shell.openExternal in Wire (high 8.0)
- [CVE-2018-8909](https://insights.sbomify.com/CVE-2018-8909/): Path traversal in n/a (high 7.5)
- [CVE-2021-41093](https://insights.sbomify.com/CVE-2021-41093/): Account takeover when having only access to a user's short lived token (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-31009 and fix it if it is affected.

What it is: CVE-2022-31009 is a medium-severity denial of service vulnerability in wireapp wire-ios, published on 23 Jun 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-31009 in the wild and no public exploit code.

Affected product: wireapp wire-ios. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-31009/ (Markdown: https://insights.sbomify.com/CVE-2022-31009/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-31009
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-31009
- OSV: https://osv.dev/vulnerability/CVE-2022-31009

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-31009/
Summaries are generated and may contain mistakes; the official description above is the record.